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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 558909Generated: October 29, 2026

5-Ethynylpyridin-2-amine → 5-[5-(3-Methyl-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-pyridin-2-ylamine

https://huagongshe.com/reaction/558909

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Ethynylpyridin-2-amineHCID 21954827—
ReactantHCID 86608026HCID 86608026—
Product5-[5-(3-Methyl-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-pyridin-2-ylamineHCID 86608125—

Reaction Steps

The title compound was prepared from 3-iodo-5-(3-methyl-4-trifluoromethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine (example C.32) (236 mg, 0.5 mmol) and 5-ethynyl-pyridin-2-ylamine (example D.1) (59 mg, 0.5 mmol) according to general procedure II. Obtained as a red solid (165 mg, 71%). MS (EI) 461.1 [(M)+]; mp 201° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063048B2
Source datasetuspto-grants-2011_11
ORD IDord-38aae89b615c429eb559de72add2e78f
Source noteuspto-grants-2011_11